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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Krzysztof Kozlowski <krzk@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Lihua Yao <ylhuajnu@outlook.com>
Subject: [PATCH] ARM: dts: s3c64xx: Fix init order of clock providers
Date: Tue,  8 Oct 2019 18:59:17 +0200
Message-ID: <20191008165917.23908-1-krzk@kernel.org> (raw)

From: Lihua Yao <ylhuajnu@outlook.com>

fin_pll is the parent of clock-controller@7e00f000, specify
the dependency to ensure proper initialization order of clock
providers.

without this patch:
[    0.000000] S3C6410 clocks: apll = 0, mpll = 0
[    0.000000]  epll = 0, arm_clk = 0

with this patch:
[    0.000000] S3C6410 clocks: apll = 532000000, mpll = 532000000
[    0.000000]  epll = 24000000, arm_clk = 532000000

Fixes: 3f6d439f2022 ("clk: reverse default clk provider initialization order in of_clk_init()")
Signed-off-by: Lihua Yao <ylhuajnu@outlook.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Sending in author's name because outlook bounces from the lists.
---
 arch/arm/boot/dts/s3c6410-mini6410.dts | 4 ++++
 arch/arm/boot/dts/s3c6410-smdk6410.dts | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/s3c6410-mini6410.dts b/arch/arm/boot/dts/s3c6410-mini6410.dts
index 0e159c884f97..1aeac33b0d34 100644
--- a/arch/arm/boot/dts/s3c6410-mini6410.dts
+++ b/arch/arm/boot/dts/s3c6410-mini6410.dts
@@ -165,6 +165,10 @@
 	};
 };
 
+&clocks {
+	clocks = <&fin_pll>;
+};
+
 &sdhci0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
diff --git a/arch/arm/boot/dts/s3c6410-smdk6410.dts b/arch/arm/boot/dts/s3c6410-smdk6410.dts
index a9a5689dc462..3bf6c450a26e 100644
--- a/arch/arm/boot/dts/s3c6410-smdk6410.dts
+++ b/arch/arm/boot/dts/s3c6410-smdk6410.dts
@@ -69,6 +69,10 @@
 	};
 };
 
+&clocks {
+	clocks = <&fin_pll>;
+};
+
 &sdhci0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
-- 
2.17.1


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Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20191008165931epcas3p2dd2937d851ed06948dd7746e5a2674b4@epcas3p2.samsung.com>
2019-10-08 16:59 ` Krzysztof Kozlowski [this message]
2019-10-08 17:18   ` Krzysztof Kozlowski
2019-10-08 17:30   ` Sylwester Nawrocki
2019-10-08 17:53     ` Krzysztof Kozlowski
2019-09-10 13:22 Lihua Yao

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